[gpfsug-discuss] 5.0 features? -- mmrestripefs -b

Felipe Knop knop at us.ibm.com
Wed Nov 29 18:27:40 GMT 2017


Kevin,

The improved rebalance function (mmrestripefs -b) only depends on the
cluster level being (at least) 5.0.0, and will work with older file system
formats as well. This particular improvement did not require a change in
the format/structure of the file system.

  Felipe

----
Felipe Knop                                     knop at us.ibm.com
GPFS Development and Security
IBM Systems
IBM Building 008
2455 South Rd, Poughkeepsie, NY 12601
(845) 433-9314  T/L 293-9314





From:	"Buterbaugh, Kevin L" <Kevin.Buterbaugh at Vanderbilt.Edu>
To:	gpfsug main discussion list <gpfsug-discuss at spectrumscale.org>
Date:	11/29/2017 12:51 PM
Subject:	Re: [gpfsug-discuss] 5.0 features?
Sent by:	gpfsug-discuss-bounces at spectrumscale.org



Simon in correct … I’d love to be able to support a larger block size for
my users who have sane workflows while still not wasting a ton of space for
the biomedical folks…. ;-)



A question … will the new, much improved, much faster mmrestripefs that was
touted at SC17 require a filesystem that was created with GPFS / Tiger
Shark / Spectrum Scale / Multi-media filesystem (<grin>) version 5 or
simply one that has been “upgraded” to that format?



Thanks…



Kevin



> On Nov 29, 2017, at 11:43 AM, Simon Thompson (IT Research Support)
<S.J.Thompson at bham.ac.uk> wrote:

>

> You can in place upgrade.

>

> I think what people are referring to is likely things like the new sub
block sizing for **new** filesystems.

>

> Simon

> ________________________________________

> From: gpfsug-discuss-bounces at spectrumscale.org
[gpfsug-discuss-bounces at spectrumscale.org] on behalf of
jfosburg at mdanderson.org [jfosburg at mdanderson.org]

> Sent: 29 November 2017 17:40

> To: gpfsug main discussion list

> Subject: Re: [gpfsug-discuss] 5.0 features?

>

> I haven’t even heard it’s been released or has been announced.  I’ve
requested a roadmap discussion.

>

> From: <gpfsug-discuss-bounces at spectrumscale.org> on behalf of Marc A
Kaplan <makaplan at us.ibm.com>

> Reply-To: gpfsug main discussion list <gpfsug-discuss at spectrumscale.org>

> Date: Wednesday, November 29, 2017 at 11:38 AM

> To: gpfsug main discussion list <gpfsug-discuss at spectrumscale.org>

> Subject: Re: [gpfsug-discuss] 5.0 features?

>

> Which features of 5.0 require a not-in-place upgrade of a file system?
Where has this information been published?

>

>

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